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The chief product of electrolysis of Al(...

The chief product of electrolysis of `Al_(2)O_(3)` at the anode in the Hall's process is

A

`H_(2)`

B

`Na`

C

`AlF_(3)`

D

`O_(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
In hall's process of electrolysis of alumina, reaction at anode is
`4AlO_(3)^(3-) to 2Al^(2)O^(3)+3O^(2)+12e^(-)`
`therefore`The chief product is `O_(2)`.
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